【摘要】 研究了以２，６－二氯甲苯为原料，催化氨氧化合成２，６－二氟苯甲腈，制备和筛选了性能优良的 Ｐ－Ｖ－Ｍｏ－Ｃｒ－Ｋ－Ｏ／γ－Ａｌ２Ｏ３氨氧化反应催化剂。经过 ２４０ ｈ催化剂寿命的初步实验，催化剂活性、选择性不降低。在 φ３２ ｍｍ×３ ｍｍ单管反应器中进行了氨氧化反应条件优化研究，反应温度 ３６０ Ｃ，接触时间 １０ Ｓ，氧气对 ２，６－二氯甲苯物质的量比为３时，２，６－二氯甲苯转化率９２．２％，２，６－二氯苯甲腈收率７７．６％，纯度为９８．７％。更多还原

【Abstract】 A Process for producing 2, 6-dichlorobenzonitrile by catalytic ammoxidation of 2, 6- dichlorotoluene as raw material is studied. The P-V-Mo-Cr-K--O/r-Al2O3 ammoxidation reaction catalysts with good function are preparated and choisen. After 240 h preliminary life test of the catalysts indicates that their activity and selectivity don’t decreased. In φ32 mm × 3 mm single tube reactor the optimizations of ammoxidation reaction condition are studied; the conversion of 2, 6-dichlorotoluene is 96. 4%, the yild of 2, 6- dichlorobenzonitrile is 77. 6%,the purity of 2, 6-dichlorobenzonitrile is 98. 6 %,wherein the reaction temperature is 360 ℃,the contact time is 10 s and the molar ratio of oxigen to 2,6-dichlorotoluene is 3.更多还原